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设r是任意实数,P={x|(x+r)2≤4},Q={x|x2+16≥5},则最合理的答案是:
( )

单选题
2021-07-17 23:12
A、<p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Q</span><span style="mso-spacerun:'yes';font-family:Symbol;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Ì</span><span style="mso-spacerun:'yes';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">P</span></p>
B、<p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Q</span><span style="mso-spacerun:'yes';font-family:Symbol;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Í</span><span style="mso-spacerun:'yes';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">P</span></p>
C、<p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">P</span><span style="mso-spacerun:'yes';font-family:Symbol;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Ì</span><span style="mso-spacerun:'yes';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Q</span></p>
D、<p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">P</span><span style="mso-spacerun:'yes';font-family:Symbol;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Í</span><span style="mso-spacerun:'yes';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Q</span></p>
A、<p class="MsoNormal"><span style="mso-spacerun:\'yes\';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Q</span><span style="mso-spacerun:\'yes\';font-family:Symbol;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Ì</span><span style="mso-spacerun:\'yes\';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">P</span></p>
B、<p class="MsoNormal"><span style="mso-spacerun:\'yes\';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Q</span><span style="mso-spacerun:\'yes\';font-family:Symbol;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Í</span><span style="mso-spacerun:\'yes\';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">P</span></p>
C、<p class="MsoNormal"><span style="mso-spacerun:\'yes\';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">P</span><span style="mso-spacerun:\'yes\';font-family:Symbol;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Ì</span><span style="mso-spacerun:\'yes\';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Q</span></p>
D、<p class="MsoNormal"><span style="mso-spacerun:\'yes\';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">P</span><span style="mso-spacerun:\'yes\';font-family:Symbol;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Í</span><span style="mso-spacerun:\'yes\';font-family:宋体;font-size:12.0000pt;mso-font-kerning:1.0000pt;">Q</span></p>
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正确答案
C

试题解析

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